What is the resistance of the LED or how much current passes through it for a 12V system. I want to select the proper fuse size.
41135
I measured amps through each of the LEDs I bought. One shows 24Ma and the other 26ma. As usual when using leds, amperage is negligible unless you are using quite a few or they are superbrights as in stoplights or turnsignals where there are usually more than one led.
742521
Each led is rated for about 3 volts at about 20 mA. In order to run them from a 9/12 volt voltage source the led requires a resistor wired in series.
367760
The voltage is 12 volts, the current on LED's is typically one fourth of ordinary lights, but it depends on the amount of LED's. LED bulbs have a variety of the amount of diodes, so the greater the amount the greater the draw. The draw with many diodes is likely to be still be less than ordinary bulbs, and certainly less than halogen bulbs.
1354518
That is really based on expected load. Recommend you check what the LED lights are rated, and you can actually od a search for the right gauge to use. I would expect you wouldn't want to pull any more than the fuse is rated. sounds like 20-22 gauge is what is used on the adapter any way so that should work.
262765
Any standard size LED sold these days is probably going to have a max current of around 30mA. Run it at 80% of that for a good long life. Look online for data sheets to really get a handle on this.
1516399
I used these lights to replace my driving lights. Driving light are on a 15 or 20 amp fuse. Being LED 15 amp fuse should be more than enough. LED draw very little power to run.
411438
I'm not an electrician, but I did ask if this can be used for LED strips, if this is a regular transformer for low voltage lighting you should be fine. The 12 gauge wire will go a further distance that 14 or 16 gauge.
245791
How could it be 2 amps at 12v - that would be 24 watts of power consumption. Say we have 1.7fv at 60ma on each of the 48 LEDs. With resistors (as opposed to a CC power supply) this would consume about 420 mA. How do you get to 2amps?
2045844
This is a delayed contact closure, not a power supply. You have to supply power for it to work.From the picture it can handle upto 10A. Your led only draws 2A.
36033
I used these, 50W 6Ohm LED Load Resistors for LED Turn Signal Lights or LED License Plate Lights (Fix Hyper Flash, Warning Cancellor) http://www.amazon.com/gp/product/B004EDF8HY/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1 by XKGLOW
1130793
fyi.....led have the lowest draw of current but they still require a fuse for protection
1389209
You need to hook a resistor in line to reduce load, my challenger I replaced bulbs with aftermarket bulbs and they are much brighter than stock and no worries on trying to match ohms with LEDs. Did not use LEDs
262767
Forward volt on the bulb is 3.2 to 3.4 dc volt.Color wave length is R-625-630 G-520-525 B-460-465.Rule of thumb buying bulk led over seas also when no stat is listed cheap means bulbs voltage is 3 some.Not 12. Im light bulb collecting fool so take it from me.These bulbs however are good bright fast flssh. Resistor value:at least1/4 watt to1/2.100 ohm at 9 volt dc 220 ohm at 12 volt dc.I know this crap can be a panin so I broke all down.Hope this helps. 24 mA yes would be correct
1001268
Being LED is draws very little amperage. If you are wiring it in by itself, just a fuse will work. I installed it in my wife's 99 jeep on the roll bar and tapped into the existing interior lights.
725740
Pull some positive voltage from your battery or a existing near by positive wire for lights/cigglighter/stereo/something that is usually on. Connect an inline fuse holder to the positive power source and string that to your LED strip. Then find a near by ground like the body of your car/any ground source and connect the negative LED line to that. To control on or off for the LED strip I'd put a switch on either the positive or negative side of your power leads, or use positive voltage from something that you can control within your car (I have a headlight switch(relay) attached to my stereo so when my stereo turns on the headlights turn on). As for a fuse, the power consumption states 1.5 watts per foot. I'd put a little head room and call it 1.6w/ft'. Then use this equation to find out how many amps you'll be pulling. (FeetOfLEDs*1.6w/12v=Current in Amps) so lets say your using 10 feet of the strip. 10ft*1.6w/12v=1.33 Amps. In that case I'd find a 1.5 Amp fast blow inline fuse and stick it in one of these: http://www.amazon.com/RoadPro-RPPS-229-Platinum--Line-Holder/dp/B001JT7B9Y/ref=sr_1_23?ie=UTF8&qid=1428017882&sr=8-23&keywords=inline+fuse or equivalent. The only tricky thing is finding the right fuse in your range and determine if you need it to blow quickly or slowly if too much current is headed to your LED strip. But you are going to have to figure out how many feet you will be using to determine what size of fuse is appropriate. Hope that helps. (Disclaimer: I'm not an electrician. I just do plenty of math and play with electronic circuits.)
132008
It's a 12 volt system you can convert voltage into amps with an easy Google search. Another way is to tack it out with a voltage meter when the system is running it will also depending on the length of time on. I've left mine on overnight several times without any problem the next day. LED systems consume the less amount of power. Hope this helps
940703
HI Stew. I used 200ohms to drive 4 RGB leds in parallel with source of 9volts. All four connected to same resistor. I haven't measure current or voltages but they bright pretty good. let me know if you need any measure.